From: Adrian Hunter Date: Wed, 11 Aug 2021 10:10:34 +0000 (+0300) Subject: perf dlfilter: Amend documentation wrt library dependencies X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=b29edf35ef7022a6f72695106a6e91f67d00c9e9;p=linux.git perf dlfilter: Amend documentation wrt library dependencies Like all locally-built programs, dlfilters may need to be re-built if shared libraries they use change. Also there may be unexpected results if the dfilter uses different versions of the shared libraries that perf uses. Note those things in the documentation. Signed-off-by: Adrian Hunter Cc: Jiri Olsa Link: https //lore.kernel.org/r/20210811101036.17986-5-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo --- diff --git a/tools/perf/Documentation/perf-dlfilter.txt b/tools/perf/Documentation/perf-dlfilter.txt index ece07509d1f70..594f5a5a0c9ed 100644 --- a/tools/perf/Documentation/perf-dlfilter.txt +++ b/tools/perf/Documentation/perf-dlfilter.txt @@ -246,6 +246,14 @@ To use the filter with perf script: perf script --dlfilter dlfilter-example.so +NOTES +----- + +The dlfilter .so file will be dependent on shared libraries. If those change, +it may be necessary to rebuild the .so. Also there may be unexpected results +if the .so uses different versions of the shared libraries that perf uses. +Versions can be checked using the ldd command. + SEE ALSO -------- linkperf:perf-script[1]